Valve assembly



Jan. 21, 1964 w. H. HAsTY 3,118,547

' VALVE ASSEMBLY l Filed Feb. 15, 1962 2 Sheets-Sheet l W. H. HASTYVALVE ASSEMBLY Jan. 21, 1964 2 Sheets-Sheet 2 Filed Feb. l5, 1962 f W 3m United States Patent O arrasa# vALvn assnrvrv Winner nowafa nasty, 12ss. niet si., niega, NSY. inea Feb. 1s, i952, ser. N0. 173,455 i cnam.(ci. ssise) The present invention relates to valve assemblies generallyand in particular to an improved valve for liquids or gases.

An object or" lthe present invention is to provide a novel valveassembly structure having means for obviating or lessening chatter when'the lvalve is in opened position.

Another object of the present invention is to provide a valve assembly,including therein a check valve, which is economical to manufacture, onewhich is foolproof in operation, and one which is highly eiieotive inaction.

A further objeot'of the present invention is to provide a valve assemblyhaving novel means for connecting a valve element to a caro on a valvestern, such rneans preventing vibration of the valve element dne to thepassage i water or gas thereover.

These and other obiects and advantages of the present invention will befully apparent from toe following description taken in connection withthe annexed drawings, in which:

FGURE l is a sectional view of the valve assembly of the presentinvention, shown in a partially opened condition,

FIGURE 2 is a view similar to FGURE l showing the valve assembly in acondi-tion in which the check valve thereof is rnoved lirorn its closedposition by the force o Water or gas received from the inlet,

'ij-HEURE 3 is a viev.7 taken on the line 3 3 or URE 1,

FGURE 4 is a View taken on the line 4 4 of URE l,

FGURE 5 is a top plan vienI of the valve assembly of the presentinvention,

FGURE 6 is a fragmentary view partly in section, with a portion brokenaway, of a modification of the present invention,

FiGURE 7 is a fragmentary view showing the valve in open condition, and

FIGURE 8 is a fragmentary view of a modication of the invention.

With reference to the drawings in detail in which like numerals indicatelike parts throughout the several views, the valve assembly of thepresent invention consists nin a housing i@ having an inlet l2 at oneend and an outlet i4 at the other end. 1

A pipe nip le i6 is threadedly engaged 1n tne inlet l2 and anothernipple 18 is threadedly engaged in the ou*- let 14.

The housing lil' is provided with a chamber 2i) intermediate -the endsthereof and connecting in communication with the outlet 3.4.

A transversely arranged bore intermediate the ends thereof and dricalvalve activator or stern 24.

The valve stern 24 carries on its midportion a cam 26 arrangedeccentrically with the longitudinal axis off the valve stem 24.

The valve stem 2d is provided on each `side ot' the cam 25 with apassage Z3 connecting in communication the inlet 12 with the chamber ZG.

The valve stem 24 has a reduced portion Sii on one end thereof whichforms a support for a handle 52. A set screw 34 secures the handle 32 tothe valve stern portion 3i). Sealing rings 3o and 3S are circurnposedabout the portion of the valve stern 2dvvithin the bore Fifi- FiG- 2?,bisects the housing it) carries therein a cylin- Fice 22 and seal thepassage 28 against leakage out of the ends of the bore 22. C-rings do oneach end of the large portion of the valve stem 24 secure the valve stem24 aga-inst longitudinal =nioven1ent with respect to the housing f1.6.

The housing l@ is provided with a bore 42 arranged longitudinally andhaving one end connected in conirnnnication With trie :passage 2S andhaving the other end connected in communication with the chamber Z0.Oirournposed about and spaced from the bore o2 are bores d3 `aisoconnecting the passage 28 with the chamber 2i?.

The poration of the bore 42 adjacent the chamber 2@ is provided with aconical val-ve seat `Lili. Within the bore i2 is a valve element i6having the portion adjacent one end tapered and conformably shaped toii-t the valve seat The other end of the valve element do, as at Sii,bears against the cam 26.

Preferably, the valve element-45 is a magnet and the cam 25 isfabricated of a. magnetically attractive mate-rial. The housing and thevalve seat 44s are formed of a non-magnetic material. Y

This permits the cam 26 to draw the valve element in the bore 42responsive to rotary movement of the valve stern 24.

Another important feature of the invention resides in Vthe provision ofa check valve 52 slidable in the chamber Zd. The check valve S2 carriesa sealing ring 54 adiacent `one end in sliding engagement with the innerwall of the `chamber 2d. A bore 55 extends longitudinally through thecheck valve 52 and has an enlarged portion S8 adjacent one end.

The portion of the housing l0 surrounding the bore i2 adjacent thechamber 2t? is provided with a nose ed which is received -in the boreenlarged portion 5S upon sliding movement of the check valve 52 in thechamber 2Q. A sea-ling ring 62 extends about the inner wall of *he boreportion 53 and engages the exterior of the nose eti to seal, incooperation with the sealinU ring 54, the passages i3 when the checkvalve 52 is in the position shown in FGURE 1 in the right hand end ofthe chamber 20.

The check valve 52 is provided in the end remote from the portion Stiwith another enlarged portion 64. A spring @e has one end bearingagainst the portion 52? or" the cheek vve 52 between the bore portion 64and the bore 56. The other end or the spring o6 bear against the bottom7@ of a shallow bore 72 provided in a closure member 74 forming a partof the lions-ing l@ and secured to the remaining portion of the housingl() by bolts 76.

A sealing ring 7S is seated in an annular groove provided on the face ofthe member 74radjacent the lremaining portion of the housing l0 andseals the mem-ber 74 to ythe remaining port-ion off the housing 1G.

The handle 32 -is provided with a pointer Sii Which cooperates Withindicia 82 etched or printed on the top of the housing 1o.

Preferably, a plate 34, as in FIGURE 2, is secured to the top of lthehousing l@ by screws 86 and forms a base for the indicia 32.

With reference to FIGURE. 6, there is shown a modified orrn of theinvention in which the housing iii' has a nose oil and a check valve 52'is provided with a sealing ring S8 on a tapered face 9d, the ring 88bearing against the nose 6d when the check valve S2' is in the closedposition.

In operation, when the handle 32 is in the closed position, as in HGURF5, the earn 26 bears against the end Si? of the `valve element d6 `andforces the valve element to the position in which the tapered portion 48is seated 3 on the valve yseat 44. This closes the low of liquid or gasfrom the inlet 12 to the outlet M except when the pressure of the liquidor gas exceeds the tension of the spring 66. Such increase in pressurewill force the check valve 52 oi the position in which the nose 69 isreceived Within the reduced bore portion 58.

Normally the check valve 52 serves to prevent the iiov/ of liquid fromthe outlet 14 into the housing 19 unless the valve element 64 is in theopened position.

Upon turning of the handle 32 to the open position, as indicated 1oy thepointer 8G and indicia $2, the magnetically attractive cam 26 will serveto draw the magnetic valve element 46 from its position seated on thevalve seat 44 to the opened position as shown in Fif- URE 7.

in FIGURE 8, a modi-tied form of the .invention is shown in which thebores 43 are connected to the bore 42 by means of an annular passage 45.This serves to increaseV the flow of luid through the housing l0.

While only preferred embodiments of the present invention are shownother embodiments are contemplated and many changes and modiicat-ionsmay be made in the invention yWithout departing from the spirit thereofas set yforth in the appended claim.

What is claimed is:

In a valve assembly including a housing having an inlet and an outlet,there being a bore in said housing extending longitudinally between saidin-let and outlet, said bore having one end connected in communicationwith said outlet and having the other end connected in communicationwith said inlet, a valve seat in said one end of said bore, a valveelement longitudinally movable in said bore between open and clos-ingposition with respoot to said valve seat, a rotatable Valve actuatorextending into said bore adjacent said bore other end, and an eccentriccam on the portion of said actuator adjacent `said valve element, saidvalve element being a magnet and said cam being of magnetic material sothat said valve element has one end thereof in sliding contact with thesurface of said cam and is movable in said bore responsive to executionof rotary movement off said stem.

References Cited in the file of this patent UNTED STATES PATENTS DavisApr. 26, 1932 Meinlte Nov. 9, 1954 497,842 Italy Sept. 24, 1954

